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Table 2 Number of proteins (out of 4934) showing significant evolutionary relationships (using PGLM, threshold p = 0.01; see Methods for details) between principal component (PC) axes and ecological/genomic traits of interest (for hypotheses, see Table 1 ; for PC axis loadings, see Figure 1 )

From: GRASP [Genomic Resource Access for Stoichioproteomics]: comparative explorations of the atomic content of 12 Drosophila proteomes

Trait Number of significant relationships
  PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8
Genome size 49 44 49 36 13 21 25 26
Intron percent 651 561 493 539 + 349 - 313 + 363 475
Dimorphism 73 58 47 82 22 27 34 53
Thorax width 128 104 49 99 33 35 50 86
Specific development time 393 309 272 267 + 170 161 197 270
Development time 118 86 31 87 31 33 37 79
Diet breadth 302* 229* 200 - 229 119+ 120 148- 205 +
Ovariole number 394 288 260 311 162 179 195 250
  1. Values over 200, or 4 × the expected number of proteins, we deemed significant and are given in bold. +/− in superscript indicates that regression coefficients are biased towards positive or negative values (binomial sign tests). Asterisk indicates the sign of coefficients are unevenly distributed among protein functional categories (χ2 tests).